Assume a researcher published a paper rejecting a null hypothesis at the 1% level of significance...
Assume a researcher published a paper rejecting a null hypothesis at the 1% level of significance (that is, α = 0.01), which of the following statements is true?
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The finding may not be significant since it was not tested at an alpha level of 0.05 |
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You cannot make any assumptions about the alpha at the 5% level without first calculating the value from the published data |
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It is 5 times as likely the null hypothesis would be accepted at the 0.05 alpha level |
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You will also reject the null hypothesis at the 5% level of significance since alpha level of 0.01 is a more stringent test |
Homework Answers
Answer : You will also reject the null hypothesis at the 5% level of significance since alpha level of 0.01 is a more stringent test.
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Assume a researcher published a paper rejecting a null
hypothesis at the 1% level of significance...
QUESTION 49 Assume a researcher published a paper rejecting a null hypothesis at the 1 %...
QUESTION 49 Assume a researcher published a paper rejecting a null hypothesis at the 1 % level of significance (that is, alpha-001). O a. The finding may not be significant since it was not tested at an alpha level of 0.05 b. You will also reject the null hypothesis at the 5% level of significance since alpha level of 0.01 is a more stringent test ] c. You cannot make any assumptions about the alpha at the 5% level without...
The higher the alpha level, a. the lower the probability of rejecting the null hypothesis. b....
The higher the alpha level, a. the lower the probability of rejecting the null hypothesis. b. the greater the probability of rejecting the null hypothesis. c. the larger the sample size has to be to reject the null hypothesis. d. the more desirable the two-tailed test. When solving the formula for finding Z(obtained) with sample proportions in the two-sample case, we must first estimate a. the population proportion. b. the critical region. c. the ratio of the sample proportions. d....
Suppose a hypothesis test is conducted using a significance or alpha level of 0.05, and the...
Suppose a hypothesis test is conducted using a significance or alpha level of 0.05, and the null hypothesis is rejected. This means that? A we would also reject the null hypothesis if the significance level had been 0.10 instead of 0.05. B the p-value was greater than 0.05. C we would also reject the null hypothesis if the significance level had been 0.01 instead of 0.05. D All answer options are correct.
13) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e.,...
13) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values of the test statistic that would result in rejection of the null hypothesis. Suppose you wish to test the claim that μd, the mean value of the differences d for a population of paired data, is greater than 0. Given a sample of n = 15 and a significance level of α = 0.01, what criterion would be used for rejecting...
A researcher poses a null hypothesis of H0: µ1 ≤ µ2, and a research hypothesis of...
A researcher poses a null hypothesis of H0: µ1 ≤ µ2, and a research hypothesis of H1: µ1 > µ2. The researcher selects an α = 0.05 critical threshold. The test has 11 degrees of freedom. The researcher obtains a t-statistic of 1.67. Determine which course of action is most appropriate. Reject the null hypothesis. Do not reject the null hypothesis. Cannot determine with the information given.
1. In testing hypotheses, the researcher initially assumes that the alternative hypothesis is true and uses the sample d...
1. In testing hypotheses, the researcher initially assumes that the alternative hypothesis is true and uses the sample data to reject it. True False 2. The first step in testing a hypothesis is to establish a true null hypothesis and a false alternative hypothesis. True False 6. The power curve provides the probability of Correctly accepting the null hypothesis Incorrectly accepting the null hypothesis Correctly rejecting the alternative hypothesis Correctly rejecting the null hypothesis 7. Suppose that Ho: μ ≤...
If the chosen significance level is α = 0.05, then ________. A) there is a 5%...
If the chosen significance level is α = 0.05, then ________. A) there is a 5% probability of rejecting a true null hypothesis B) there is a 5% probability of accepting a true null hypothesis C) there is a 5% probability of rejecting a false null hypothesis D) there is a 5% probability of accepting a false null hypothesis
(3 points) When one changes the significance level of a hypothesis test from 0.10 to 0.05,...
(3 points) When one changes the significance level of a hypothesis test from 0.10 to 0.05, which of the following will happen? Check all that apply. A. The chance of committing a Type I error changes from 0.10 to 0.05. B. The test becomes more stringent to reject the null hypothesis (i.e., it becomes harder to reject the null hypothesis). C. The chance that the null hypothesis is true changes from 0.10 to 0.05. D. It becomes easier to prove...
A researcher sets the significance level (α) at .05. If the results of the statistical analysis...
A researcher sets the significance level (α) at .05. If the results of the statistical analysis reveal a p-value of .05, the researcher should ______ (reject or fail to reject) the null hypothesis. The potential error that the researcher is making is a Type _____ (I or II) error.
A researcher sets the significance level (α) at .01. If the results of the statistical analysis...
A researcher sets the significance level (α) at .01. If the results of the statistical analysis reveal a p-value of .01, the researcher should reject the null hypothesis. The potential error that the researcher is making is a Type____ error.
QUESTION 49 Assume a researcher published a paper rejecting a null hypothesis at the 1 % level of significance (that is, alpha-001). O a. The finding may not be significant since it was not tested at an alpha level of 0.05 b. You will also reject the null hypothesis at the 5% level of significance since alpha level of 0.01 is a more stringent test ] c. You cannot make any assumptions about the alpha at the 5% level without...
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